page{
    background-color: black;
}
.image-text{
    display: flex;
    flex-direction: column;
    align-items: center;     
    margin-top:  100px;
}
.text{
    color: #f0f2e0;
    font-size: 24px;
}
.step{
    width: 100%;
    height: 800px;
    text-align: center;
    background: url('https://experts.bayou-tech.cn/img/imgs/step.png');
    background-size:100%;
    background-position: center;
    background-repeat:no-repeat;
}
/* .img{
    width: 720px;
    height:800px;
} */
.btn{
    height: 100px;
    width: 400px;   
    margin-top: 100px;
    color: #72d021;
    border: 2px solid #72d021;
}